
SUS4 Loop Builder: Loop Pedal
Layer up to 8 tracks, overdub
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Free
In-App Purchases
Rating summary
About
Record a part, loop it, and stack the next one on top.
Up to eight tracks, each with a level control, so the idea sounds like a song before you leave the room.
Fully on-device: no cloud, no account.
Start with a chord loop, add a bass line, then a melody. Undo the last layer if it was wrong. When it works, export the mixdown as an audio file.
• Up to 8 loop tracks, with level and mute per track
• Undo the last layer
• Export the mixdown as an audio file
• A library of saved loop sessions
For guitarists and singers building song ideas, beatboxers, and anyone who uses a loop pedal on stage and wants one in their pocket.
Pro, or SUS4 All-Access across the whole range, adds reverb, delay and 3-band EQ on each layer, stem export (every track as a separate file) and unlimited saved loops.
Made in the UK by working musicians.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in SUS4 Loop Builder
1.2.0
October 12, 2026
SUS4 now speaks your language: the app is available in 50 languages. Any lifetime purchase now unlocks every SUS4 app. A clearer upgrade screen, plus fixes and polish throughout.
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Subscriptions & In-App Purchases
SUS4 Loop Builder Pro Monthly
Unlock unlimited loops, multi-track export, p
$0.991 Month
7 Days trial








